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Page: Types of Gland
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Glands can be divided into two groups:
* Endocrine glands- are glands that secrete their product directly onto a surface rather than through a duct.
* Exocrine glands- secrete their products via a duct, the glands in this group can be divided into three groups:
o Apocrine glands - a portion of the secreting cell's body is lost during secretion. Apocrine gland is often used to refer to the apocrine sweat glands.
o Holocrine glands - the entire cell disintegrates to secrete its substances (e.g., sebaceous glands)
o Merocrine glands - cells secrete their substances by exocytosis (e.g., mucous and serous glands). Also called "eccrine."
The type of secretory product of an Exocrine gland may also be one of three categories:
* Serous glands- secrete a watery, often protein-rich product
* Mucous glands- secrete a viscous product, rich in carbohydrates (e.g., glycoproteins)
* Sebaceous glands- secrete a lipid product
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Important notice:
The content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other
qualified health provider with any questions you may have regarding a medical condition.
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